GENEVA, Sept. 9 -- MITSUBISHI HEAVY INDUSTRIES, LTD. (2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo1008332), 三菱重工業株式会社 (東京都千代田区丸の内三丁目2番3号), MITSUBISHI POWER, LTD. (2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo1008332), 三菱パワー株式会社 (東京都千代田区丸の内三丁目2番3号) filed a patent application (PCT/JP2024/045382) for "VALVE DEVICE, SOLID FUEL PULVERIZING DEVICE, AND METHOD OF OPERATING VALVE DEVICE" on Dec 2...